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A Review of Different Generations of Mobile Technology Amritpal Singh

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A Review of Different Generations of Mobile Technology Amritpal Singh International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 4 Issue 8, August 2015 A Review of Different Generations of Mobile Technology Amritpal Singh distributed over Abstract— Wireless mobile technology has revolutionized the way people communicate with each land areas called cells each cell has its own cell site or base other the hindrance that was caused to the station the frequencies used by neighboring cells are different communicating parties due to distance has become to avoid interference. obsolete a mobile phone has become an integral part of our day to day work the present day mobile phones that II Zero Generation (0G-0.5G) we use have come a long way since the inception of mobile telephone service introduced in USA in 1940s the The work to design a portable telephone system started evolutionary process of wireless mobile technology is immediately after World War II the phase which is broadly classified into generations (0G, 2G, 3G, 4G) categorized under 0G started from 1946 when Motorola and where G stands for generation with 0G being the initial phase and 4G which is in use currently 0G refers to pre Bell systems began operating first mobile telephone system cell phone telephone technology the concept of “cell” was (MTS) this phase is also known as mobile radio telephone introduced in 1G present day mobile phones are capable system phase and pre cellular phase in this generation the of text, voice and video data transfer work is underway telephone systems were quite different from what are in use on development of 5G mobile technology it will have now the mobile telephone systems were mounted on vehicles features of World Wide Wireless Web(WWWW), like cars, trucks etc. the telephone system had a transceiver Dynamic Adhoc wireless network(DAWN) it will have which preformed the function of a transmitter and receiver much higher speed, better connectivity, high capacity and was placed somewhere in the vehicle‘s trunk and was and high error tolerance right now the term 5G is not connected with a wire to the head which consisted of dialing officially used. mechanism and display the head was placed near the driver‘s seat its working principle was, the telephone device would Index Terms— mobile technology, 1G,2G,3G,4G,5G, connect to local telephone network only when it is in a range WWWW, wireless technology, generations of 20 km a central antenna tower was installed in each city having 25 channels number of people who were able to avail I INTRODUCTION . the services of this system was very less as only 25 channels In 1895, Italian inventor and electrical engineer Guglielmo were available these telephone systems had only voice Marconi paved the way for modern wireless communications transmission facility, used analog signals , were very bulky, by transmitting the three-dot Morse code for the letter ‗S‘ had half duplex mode of communication Technologies used over a distance of three kilometers using electromagnetic in 0G systems included PTT (Push to Talk), MTS (Mobile waves since then the wireless transmission has come a long Telephone System), IMTS (Improved Mobile Telephone way technology is evolving at a rapid pace and it is true in Service), AMTS (Advanced Mobile Telephone System), case of mobile technology also mobile or cellular phones OLT and MTD have become a vital element in our day to day work and routine socializing there has been a transition from fixed 0.5G was the successor of 0G technology it had some telephone line systems to mobile phones in the past decade noticeable new features the size was reduced and the there are many factors for this transition one of most telephone systems became portable ARP (autoradiopuhelin) pronounced one being the portability factor. The first brush was launched in 1971 which was the first commercial public we had with mobile wireless technology was after World War mobile network it operated on 8 channels with frequency of II in the form of radio telephones which some cars in USA 147.9-154.87 MHz like 0G these systems had also half used to have in those formative days a mobile operator used duplex mode of communication one path breaking feature of to set up calls and only few channels were available, mobile 0.5 G was the concept of ―cell‖ a cell is an area of some city network is also called cellular network as the network is divided into small sectors also called cells(hence the term cellular phone) cell size being 30 Km these systems didn‘t had handover facility, technologies used in this generation were High Capacity Mobile Telephone System(HCMTS), . 3404 ISSN: 2278 – 1323 All Rights Reserved © 2015 IJARCET International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 4 Issue 8, August 2015 Public Automated Land mobile(PALM) Fig 2 mobile system of first generation III Second Generation This technology was introduced in 1991 based on technique known as Global System for Mobile Communication(GSM) in this era the signals were digital so this generation systems had a clear edge over their . Fig 1 mobile telephone systems of 0G predecessors it had the facility of text messages, picture messages and video messages the messages were digitally II First Generation (1G) encrypted due to the use of digital signals voice quality became better than previous generations, spectrum is also This technology was introduced in early 1980‘s from this utilized more efficiently and less amount of bandwidth is phase mobile cellular era began this technology used analog needed for voice and video transmission 2G also introduced signals and had only voice transmission facility the global the ability to download media content on mobile phones the mobile phone market grew after 1G technology was size was considerably reduced from the first generation phones data speed achieved by 2G phones was up to 100 introduced these phones had low capacity, unreliable kbps. The downside of 2G was that it was dependent on handoff, poor voice links, no security from eavesdropping proximity and location to towers 2G systems can be classified these telephones worked on circuit switching, operated at by their multiple access techniques as either TDMA or 150 MHz frequency and speed of 2.4kb/s the voice quality FDMA was poor, suffered interference due to use of analog signals ,had limited capacity of users, these phones were large in size TDMA (2G): 2G Mobiles uses TDMA (Time Division and had poor battery life due to their size there was one more Multiple Access) technology in some of its models. It actually issue concerning secure communication as anyone was able divides the band into three time-periods TDMA contains to hear the transmission after tuning to the same frequency, technologies GSM (Global Service Mobile Communication), semiconductors and microprocessors were used in the design which is the most common technology, uses widely across the of phones of this generation some noticeable models of 1G world use of SIM is a prominent feature of GSM. It needs were Advanced Mobile Phone System (AMPS) launched in only a SIM to start communication at a particular region. USA in 1982, Radiocom 2000 launched in France ,Total Access Communication system(TACS), BTMI launched in CDMA (2G): CDMA works using the entire band with the Italy and Nordic Mobile Telephony(NMT) used in Denmark, help of code. CDMA is based on a wide spectrum as many Iceland, Finland and Sweden. The first generation of calls laid over each other identifying on the basis of unique analogue mobile systems was launched in Japan by NTT in code 1979 and covered Tokyo‘s 20m people with 23 base stations Further variants of 2G are 2.5G-GPRS and 2.75-EDGE and by 1984 covered the whole of the country, in USA Motorola pioneered in creating first mobile network in Washington DC Fig 3 mobile systems of 2G 3405 ISSN: 2278 – 1323 All Rights Reserved © 2015 IJARCET International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 4 Issue 8, August 2015 Further variants of 3G are: 2.5 G--GPRS (general Packet Radio service): it has higher data capacity than 2G GPRS adds packet switched 3.5G – HSDPA (High-Speed Downlink Packet Access): it capabilities and TDMA networking it sends text and is a mobile telephony protocol it provides packet based graphics rich data at a high speed this technology provides service it provides a packet based service it improves the data rates up to 115kbps has features like WAP, e-mail, speed and quality of downlink data transmission on networks MMS and Internet. based on UMTS HSDPA consist of Multiple-Input Multiple-Output (MIMO), Hybrid Automatic Request 2.75—EDGE (Enhanced Data Rates For GSM (HARQ), Adaptive Modulation and Coding (AMC), Evolution):it an extended version 2.5 G it provides fast advanced receiver design and fast cell search provides the transmission without glitches it can transmit packet switched speed ranging from 8-10 Mbps downlink which is much and circuit switched data. more than 3G it has less latency as compared to 3G and is cheap because it only has to be upgraded from 3G. IV Third Generation 3.75G – HSUPA (High-Speed Uplink Packet Access): it is It is based on the International Telecommunication Union also known as 3.75G this protocol strives for providing (ITU) family of standards under the International Mobile higher uplink speeds up to 5.8Mbps it enhances the uplink Telecommunications programme it was implemented in year speed by increasing throughput, capacity and decreasing 2000, IMT-2000 this technology redefined the definition of a delays. HSUPA works on request grant principle in which mobile phone which till now was primarily a communication user will seek permission from scheduler to transmit data device but from 3G era internet, email and other web (data is send in packets), scheduler then decides at what time features became associated with mobile phones this the user can send data and number of users who will be technology supports data transfer rates up to 2Mbps, supports permitted to send data.
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